Richard
After seeing your edits I started a discussion on the Tagging forum (as
canals & water features are, obviously worldwide) to see if your
amendments were correct.
This wiki page was pointed out to me:
https://wiki.openstreetmap.org/wiki/Proposed_features/Water_details
As you can see it's been discussed & in use for a few years.
I was never really happy with the riverbank tag especially as it was
used as a 'cover all' solution, so the proposals in this wiki are
beneficial.
A response from that discussion which clinched it for me:
"The advantage is that you can determine it is a canal from the polygon
alone. With waterway=riverbank you have to find the corresponding
centerline first (assuming it exists)."
I've now amended most of the rivers/canals in my area to suit.
"and IMHO very poorly"
Really sorry to say this, but some of your edits have been a bit off. In
JOSM do you load all the data in the area you're editing? I've noticed
you move whole entities, such as fences, but seem unaware that action
affects any joined elements like other fences or footpaths.
You amended locks that are on rivers to waterway=canal which IMO is
incorrect:
http://www.openstreetmap.org/way/39910760
Also which imagery are you tracing from? In some cases it appear to
vary from Bing in Potlatch.
Cheers
David F.
On 06/08/2014 19:17, richard wrote:
Firstly a disclaimer, I am mostly an armchair mapper.
I am working my way around the canals of Britain, tracing the canal banks and
tidying up locks etc. (I have probably seen a dozen different ways that locks
have been tagged.)
I started off tagging the canal banks as
waterway=canal+area=yes
but it was pointed out to me by another mapper that this was confusing
renderers and was pointed to the Wiki entry that suggested they should be
tagged as
natural=water+water=canal
I therefore changed my existing tagging to reflect this and tagged my
subsequent tracing this way. I have come across a few areas that have been
traced by others (Mostly a long time ago ) that have been
tagged as
waterway=riverbank
and I have changed these as I have realigned them.
Today I have had a critical message from another mapper who said among other
things,
"Wide-ranging changes to existing tagging schemes, just because you read a
Wiki page is not good enough."
I have two problems with this sentence,
1/ My CHANGES have not been what I would consider wide ranging as most of the
mapping has been done by myself therefore new not changed.
2/ If the reading of a Wiki page is not good enough then why bother having a
wiki? Do we have to resort to the mailing list every time we want to tag
something?
If there is an "accepted" way to map canals can someone point me to it?
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